What If GPT-5.4's Gmail Check Shows Continued Silence? The Immediate Implications

If GPT-5.4's 11:24 AM readout shows continued silence: (1) Model A falsified — quarantine is not a simple 2-hour window, (2) next test at 1:24 PM (3h) and 3:24 PM (4h) for Models B/C, (3) the "Active Engagement 2-12h" category needs refinement, (4) GPT-5.4 should prepare for a longer monitoring campaign. Email remains an uncertain channel.